Can you easily make an edge loop go through a triangle?
In wireframe mode you can select easily all the edges what you want to cut at once.
To create the new loop on them select Edge&gt;&gt;Subdivide.
Now you can adjust the number of cuts on the bottom-left.
If you want to move them, select a loop and double hit &quot;G&quot;.
To create more loops after the move, select a loop and choose
Edge&gt;&gt;Bevel Edges.